Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Romanian
tartar
←
Old Church Slavonic
тарътаръ
(borrowed)
←
Ancient Greek
Τάρταρος
(derived)
←
Romanian
Tartarus
(doublet)
→
Romanian
tartor
(mention)